THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 05/06/2006 at 05:22, xxxxxxxx wrote:
User Information:
Cinema 4D Version: 9.6
Platform: Windows ; Mac ;
Language(s) : C++ ;
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I want to show a custom image for my shader. Is there any way to identify where a corresponding pixel of the passed BaseBitmap is in the world space? Or at least the direction from eye view?
My shader is on a sky object.
Thanks
THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED
On 05/06/2006 at 07:29, xxxxxxxx wrote:
what I actually want to do is something like the c4d sky preview in the editor. I tried a spherical conversion, but my code creates distortion:
for(LONG y=0;y<bmp->GetBh();++y)
{
float v = float(y)/(bmp->GetBh()-1);
float phi = Mix(90,-90,v);
for(LONG x=0;x<bmp->GetBw();++x)
{
float u = float(x)/(bmp->GetBw()-1);
float theta = u*360;
float theta_rad = Rad(theta);
float phi_rad = Rad(phi);
Vector wp = Vector(sin(phi_rad) * cos(theta_rad),
sin(phi_rad) * sin(theta_rad),
cos(phi_rad));
Any help appreciated